time capsule
I recently purchased a WD 8TB external drive to plug into my Time Capsule and use as a dual Time Machine backup for my iMac and my wife's MacBook Pro. I partitioned the drive into 2 parts, one for the Time Machine backups, and the other for general storage backup. For my first back-up, I plugged the external drive directly into my iMac in order to quickly back up the 1TB of data. Afterwards, I plugged the external drive directly into the Time Capsule so my wife could also use it wirelessly to back up. The next day I noticed that my iMac was backing up the whole 1TB of information again on the external drive even though I had picked the same drive to backup to in the Time Machine settings. Why would it not recognize my computer as the one it had backed up the day before??? I appreciate any help on this.